Col-OSSOS, or Colours of the Outer Solar System Origins Survey, is a large program using the Gemini-North, Canada-France-Hawaii, and Subaru telescopes. Our observing will provide a combination of high precision simultaneous photometry in u, g, r, z, and J bands of a magnitude limited sample of Kuiper Belt Objects discovered by the Outer Solar System Origins Survey. Our focus is to measure a complete sample which reveals the intrinsic color structure of the outer Solar System. Our first results include the discovery of the blue-binary cold classical TNOs [Fraser et al. 2017] and the unique colors of cold classical objects in g-r and r-z colors [Pike et al. 2017].